Cited by 48Functional Brain Connectivity StudiesSuicide and Self-Harm StudiesTreatment of Major Depression

Resting-state amplitude of low-frequency fluctuation is associated with suicidal ideation

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Lan, Martin J., Rizk, Mina M., Pantazatos, Spiro P., Rubin‐Falcone, Harry, Miller, Jeffrey M., Sublette, M. Elizabeth, Oquendo, Maria A., Keilp, John G. +1 more·2019·Depression and Anxiety

Abstract

BACKGROUND: Identifying brain activity patterns that are associated with suicidal ideation (SI) may help to elucidate its pathogenesis and etiology. Suicide poses a significant public health problem, and SI is a risk factor for suicidal behavior. METHODS: Forty-one unmedicated adult participants in a major depressive episode (MDE), 26 with SI on the Beck Scale for Suicidal Ideation and 15 without SI, underwent resting-state functional magnetic resonance imaging scanning. Twenty-one healthy volunteers (HVs) were scanned for secondary analyses. Whole brain analysis of both amplitude of low-frequency fluctuations (ALFFs) and fractional ALFF was performed in MDE subjects to identify regions where activity was associated with SI. RESULTS: Subjects with SI had greater ALFF than those without SI in two clusters: one in the right hippocampus and one in the thalamus and caudate, bilaterally. Multi-voxel pattern analysis distinguished between those with and without SI. Post hoc analysis of the mean ALFF in the hippocampus cluster found it to be associated with a delayed recall on the Buschke memory task. Mean ALFF from the significant clusters was not associated with depression severity and did not differ between MDE and HV groups. DISCUSSION: These results indicate that SI is associated with altered resting-state brain activity. The pattern of elevated activity in the hippocampus may be related to how memories are processed.

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  • Resting-state studies of SI in adults diagnosed with MDD have found network changes in the hippocampus, thalamus, caudate, and anterior insula associated with SI scores.

    “For example, resting-state studies of SI in adults diagnosed with MDD have found network changes in the hippocampus, thalamus, caudate (66), and anterior insula (72) associated with SI scores.”

    From New methods for assessing rapid changes in suicide risk (2021) · cites this paper as [66]

  • These studies have mostly assessed suicide risk in larger clinical samples of participants diagnosed with mood disorders and other psychiatric conditions with which suicide is a comorbid phenotype, but rarely have they investigated suicide transdiagnostically.

    “Finally, these studies have mostly assessed suicide risk in larger clinical samples of participants diagnosed with mood disorders (64–75) and other psychiatric conditions (76–79) with which suicide is a comorbid phenotype, but rarely have they investigated suicide transdiagnostically.”

    From New methods for assessing rapid changes in suicide risk (2021) · cites this paper as [66]

  • Suicidal ideation relates to greater rs-fMRI activity in the vmPFC and greater resting functional connectivity between the OFC and amygdala and between the posterior cingulate cortex and middle temporal gyrus.

    “Suicidal ideation relates to greater rs-fMRI activity in the vmPFC (88) and greater resting functional connectivity between the OFC and amygdala (89) and between the posterior cingulate cortex and middle temporal gyrus (90), perhaps related to negative self-reflection or rumination (91).”

    From A brain-centric model of suicidal behavior (2020) · cites this paper as [88]

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Research works printed but not linked: 1

  1. Oquendo MA, Halberstam B, & Mann JJ (2003). Risk factors for suicidal behavior: utility and limitations of research instruments. In First MB (Ed.), Standardized evaluation in clinical practice (1st ed., pp. 103– 130). Washington DC: American Psychiatric Publishing.

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Authors
Lan, M. J., Rizk, M. M., Pantazatos, S. P., Rubin‐Falcone, H., Miller, J. M., Sublette, M. E., Oquendo, M. A., Keilp, J. G., & Mann, J. J.
Affiliations
  • New York State Psychiatric Institute (US)
  • Department of PsychiatryPerelman School of MedicineUniversity of PennsylvaniaPhiladelphia Pennsylvania
Corresponding author
Lan, Martin J.
Venue
Depression and Anxiety
Publisher
Wiley
Published
2019-03-21
Volume
36
Issue
5
Pages
433-441
ISSN
  • 1091-4269 (ISSN-L)
  • 1520-6394
OpenAlex
W2924751981
Cited by
48
References
57
Citations by year
2026: 4 · 2025: 10 · 2024: 2 · 2023: 8 · 2022: 9 · 2021: 8 · 2020: 5 · 2019: 2
FWCI
3.49
Type
journal article
Language
en
Open access
Locations
  • Depression and Anxiety (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institute of Mental Health (K23MH10568, K08MH079033, K08MH085061, K01MH108721)
  • Institut National de la Santé et de la Recherche Médicale (K08MH085061)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Functional Brain Connectivity Studies
  • Social Sciences › Psychology › Clinical Psychology › Suicide and Self-Harm Studies
  • Health Sciences › Medicine › Pharmacology › Treatment of Major Depression
Keywords
suicidal ideation, amplitude of low-frequency fluctuation, resting-state brain activity, major depressive episode, hippocampus, thalamus, caudate nucleus, memory retrieval, multi-voxel pattern analysis, suicide risk
MeSH terms
Adult, Brain Mapping, Caudate Nucleus, Major Depressive Disorder, Female, Hippocampus, Humans, Magnetic Resonance Imaging, Male, Thalamus, Suicidal Ideation

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